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(No Model) 4'Sheets Sfieet 1. G. M. HINKLEY. sA MILL. SET WORKS.

Patented Jan. 1, 1884.

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(No Model.) I 4 sheets-sheet 2.

G. M. HINKLEY.

SAW MILL SET WORKS.

-N0., 291,344. Patented Jan. 1-, 1884.

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(No Model.) 4 Sh t 4.11 s.

G. M. HINKLEY.

SAW MILL SET WORKS;

,344. Patented Jan. 1, 1884.

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4 Sheets-Sheet 4.

(No Model.)

G. M. HINKLEY. sAW MILL SETWORKS.

"P te ted Jan a, n I

WITNESSES which the following is a specification.

and setting the knees, in forming the headsection through the samefromfront to rear;

1 andfront elevation withjlateral ribs or flanges a, which travelinmeans "of a link, 0, jointed at one endto lugs resents a perspectiveview'of a saw-mill carderstood from the following explanation, taken 1;UNITED [STATES PATENT @EEEJE.

3 oEoEeE M. rnnkrnv, OF MILWAUKEE, WISCONSIN.

SAW-MILL SET-WORKS.

SPECIFICATION formingpart of. Letters Patent No. 291,544, dated January1, 1884.

Application filed October 12, 1883. (No model.)

To all whoin it may concern:

Be it known that I, GEORGE M. HINKLEY, of Milwaukee, in the county ofMilwaukee and State of WViseonsin, have invented certain Improvements inSaw-Mill Carriages, &o.,, of

IMy invention relates to saw-mill carriages; and it consists in noveldevices for adjusting blocks withbeveled ends or guards to preventinjury from contact with the bar of the logturner or other body, and inother features and detailshereinafter more fully explained. In theaccompanying drawings, Figure 1 rep riage complete; Fig. 2, a verticaltransverse Fig. 3, a transverse section of the sliding knee and the areformed upon or secured thereto to receive the locking-bolt of theknee-setting lever;-Fig. 4 a plan, Fig. 5 aside elevation, and Fig. 6 afront elevation, of the nose-of the head block; Figs. 7 and 8,respectively, a plan showing a slight modificatioi1 of the same. i

The first part of my invention relates to means for adjusting the kneesupon the carriage to the same line, as will be readily unin connectionwith Fig. 2.

A represents the saw-mill carriage, mounted uponwheels B, and providedwith a longitudinal shaft, 0, upon which ape secured, at properintervals, pinions D, which serve to move the knees E forward andbackward upon the carriage, as usual, the knees being formed grooves binthe head-block. In order that one knee may be advanced more thananother, when required to accommodate tapering 3, the knee beingconnected with said rack by or ears (1. formed upon said rack, and atthe other end-to a hand-lever, G, pivoted in the knee at e. By reason ofthis connection it will -of the others is not claimed by me, being oldand well known.

l The lever G carries a locking bolt or pin, f, l

to engage in a rack, and thereby to hold the lever at any requiredadjustment, the bolt being pressed downward by a spring, q, andconnected by a wire or rod, 1, with a handpiece,

s, by which it may be withdrawn. In the practical use of such machinery,difficultyis experienced in bringing the several knees exactly into lineon the carriage and parallel with the face of the saw, owing to a slightdifference in the set-ting of the pinions on shaft D, in the mounting ofthe head-blocks upon the carriage,

or from other causes, which render it almost impossible to secure suchalignment under ordinary construction. To overcome this diffieulty, Iform the recesses or cavities for the entrance of locking-bolt f inanadjustable strap, so that the bolt may be permitted to enter a recessin the strap and carry said strap forward or backward with the lever, asthe case may be, until the lever moves the-knee to the exact positionrequired, when the strap ,is

firmly secured in such position. Referring again to Figs. 2 and 3, thisadjustment will be more fully explained.

The lever G is pivoted to the sliding knee ate, as above mentioned, andswings in a vertical plane close to theupright face of a semicircularcasting, H, the outer face ofwhich is an arc of a circle concentricwiththe pivotc of lever G. This may be cast with or bolted to'the kneeE, and is formed at or near each end with a perforated lug or ear,

I represents a metallic strap, perforated or recessed at regular andsuitable intervalsto receive the lockingbolt f, the ends of whichstrapare rounded, threaded, and passed through the ears 9, and furnishedwith nuts h, as shown, the bodyof the strap being bent around the outerface of the are, as in Fig. 2. Before turning up the nuts to secure thestrap in place, one knee of the series is brought to place, and theothers are then adjusted, one or more of the knees being provided withthe adjusting-lever G and attendant parts, as

circumstances may require. After the first knee is brought to position,the second is carefully adjusted forward or back by a movement of thelever G until its front face is exactly in line with that of the firstknee, the strap I moving with the lever because of the engagement of thelocking-bolt f therein. It is of course to be understood that thisadjustment, is comparatively slight, as the knees are set approximatelyclose in line in first mounting the parts. Vhen the second knee isbrought exactly into line with the first, the nuts 71, at both ends ofstrap I, are screwed up tight, and the strap is thereby secured firmlyand accurately in place. In this way absolute accuracy may be readilysecured.

It is obvious that wedges may be passed through slots in the end of thestrap, instead of employing nuts, that the same result may be secured byproviding the rack with ad justable lugs for the engagement of bolt f,by employing an extensible link in place of the simple link 0, or bymaking the fulcrum of lever G and the rack adjustable, and therefore,

. while I deem the construction described and shown as the best for thepurpose, I do not limit myself to the precise details shown, but

consider such modifications as within my in-' vention.

The next feature of my invention consists in beveling the forward endsof the headblocks, or providing them with inclined guards to ward off ormove aside the bar of the logturner or any otherv object they might comeinto contact with when the carriage is in motion. This will be betterunderstood upon referring to Figs. 4 to 8, inclusive.

Heretofore the head -blocks have universally been made with square nosesor forward ends, which, coming in contact with the bar of the log-turneror other obstruction, were often broken thereby, owing to theirinability to defleet or move back such obstruction. Under myconstruction, however, the vertical sides of the nose or forward end ofthe head-block are beveled, as shown in plan in Fig. 4, and in front orend elevation in-Fig. 5, thereby forming inclines t, which serve to wardoff and crowd back any obstruction capable of moving back, but whichcould not be moved in the direction of travel of the carriage. Theseinclines will ordinarily be formed in casting the head-block; but in thecase of machinery already in use they may be formed separately, andbolted or otherwise secured in place, as shown in plan in Fig. 7, infront elevation in Fig. 8, and in perspective in I do not in thisapplication claim the truck boxes and the lubricating device, as thesefeatures are made the subj cot-matter of a separate application, as adivision of this case, in compliance with an official requirement tothat effect.

Having thus described my invention, what I claim is- 1i The combination,in a saw-mill carriage, of a head-block, a knee sliding therein, arackbar sliding in said knee, a pinion secured upon the feed-shaft andmeshing with the rack, a lever fulerumed in the sliding knee, and a linkconnecting the lever and the rack, substan-- tially as shown.

2. In combination with a saw-mill headblock and a knee arranged to slidetherein, a rack meshing with a feed-pinion and separate from the knee, alever to move said knee independently of the rack, provided with alocking device, and a rack to receive said looking device, said rackbeing adjustable, substantially as described, to permit it to be broughtinto proper relation to the locking device.

3. In combination with a saw'mill head- .block, a knee movable thereon,a lever con- 4:. In combination with a sliding knee, E,

provided with are H, adjusting-leverG, provided with a locking-bolt, F,and a recessed strap, I, applied to and adjustable upon the are,substantially as and for the purpose explained.

5. The combination, substantially as shown and described, of ahead-block, a knee, E, movable thereon, a rack, F, movable independentlyof the knee, a hand-lever, G, pivoted to the knee and provided with alocking-bolt, f, a link, 0, connecting the handlever and the rack F, anare, H, upon the knee provided with ears and a strap, I, adapted toreceive the locking-bolt f, having its ends passed through the ears 9,and provided with nuts h.

6. The herein-described method of aligning kneesupon a saw-mill carriageand adjusting their locking devices to maintain suchalignnarrowestportion being at the extreme front end, substantially as and for thepurpose eX- plained.

8. In combination with a traveling saw-mill Carriage, a head-blockhaving its nose or forby inclined faces, as shown; whereby it is ward(1end narrowed and provided with inadapted to deflect obstructions. olinefaces connecting the narrow ends and i T T i a the sides, as and forthepurpose explained. GEORGE HILKLEL 5 9'. A saw mill head-blocknarrower at its Witnesses:

extreme forward end than in rear thereof, and W'M. W. ALLIS, having itsnarrow end and its sides connected ALBERT HOPPIN.

